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Peak Streamflow for the Nation

USGS 01646500 POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA

Montgomery County, Maryland
Hydrologic Unit Code 02070008
Latitude  38°56'59.2", Longitude  77°07'39.5" NAD83
Drainage area 11,560  square miles
Gage datum 37.20 feet above NAVD88

Period of record
Begin Date End Date Peaks
1931-04-03 2022-12-24 93

 
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